Two groups separately performed an experiment by tossing a coin in the air. Group C performed 50 trials and group D performed 100 trials. Each group recorded the results in the table below:

Question

Two groups separately performed an experiment by tossing a coin in the air. Group C performed 50 trials and group D performed 100 trials. Each group recorded the results in the table below:

Group Heads Tails
C 31 19
D 51 49

What conclusion can be drawn about the number of trials and the probability of the coin landing on heads or tails? (1 point)

The experimental probability and the theoretical probability for group C is same.

The experimental probability and the theoretical probability for group D is same.

The experimental probability is closer to the theoretical probability for group C than group D.

The experimental probability is closer to the theoretical probability for group D than group C.

Answer 1

The experimental probability for group D is closer to the theoretical probability than for group C. Since group D performed a larger number of trials (100 trials), their results are likely to be closer to the expected theoretical probability of 50% for heads and 50% for tails when flipping a coin. Group C, on the other hand, only performed 50 trials which may have led to more variability in the results.